[軟件安裝]yum?install?-y?keepalived rpm?-qa?keepalivedLB01配置文件 [root@LB_01?~]#?cat?/etc/keepalived/keepalived.conf!Configuration?file?for?keepalivedglobal_defs?{notification_email?{845330082@qq.ocm}notification_email_from?Lufeng.lufeng@firewall.locsmtp_server?127.0.0.1smtp_connect_timeout?30router_id?lb01 }vrrp_script?chk_nginx_proxy?{ script?"/home/lufeng/tools/chk_nginx_proxy.sh"interval?2 weight?2 }vrrp_instance?VI_BBS?{state?MASTERinterface?eth0virtual_router_id?55priority?150advert_int?1authentication?{auth_type?PASSauth_pass?1111}virtual_ipaddress?{192.1.1.45/24?dev?eth0?label?eth0:1}track_script?{chk_nginx_proxy} } vrrp_instance?VI_WWW?{state?BACKUPinterface?eth0virtual_router_id?56priority?100advert_int?1authentication?{auth_type?PASSauth_pass?1111}virtual_ipaddress?{192.1.1.46/24?dev?eth0?label?eth0:2} }LB02配置文件[root@LB_02?tools]#?cat?/etc/keepalived/keepalived.conf !Configuration?file?for?keepalivedglobal_defs?{notification_email?{845330082@qq.ocm}notification_email_from?Lufeng.lufeng@firewall.locsmtp_server?127.0.0.1smtp_connect_timeout?30router_id?lb02 }vrrp_instance?VI_BBS?{state?BACKUPinterface?eth0virtual_router_id?55priority?100advert_int?1authentication?{auth_type?PASSauth_pass?1111}virtual_ipaddress?{192.1.1.45/24?dev?eth0?label?eth0:1} }vrrp_script?chk_nginx_proxy?{ script?"/home/lufeng/tools/chk_nginx_proxy.sh"interval?2 weight?2 }vrrp_instance?VI_WWW?{state?MASTERinterface?eth0virtual_router_id?56priority?150advert_int?1authentication?{auth_type?PASSauth_pass?1111}virtual_ipaddress?{192.1.1.46/24?dev?eth0?label?eth0:2}track_script?{chk_nginx_proxy} }檢查nginx腳本： [root@LB_02?tools]#?cat?/home/lufeng/tools/chk_nginx_proxy.sh? #!/bin/sh if?[?`netstat?-lntup|grep?nginx|wc?-l`?-ne??1?];then/etc/init.d/keepalived?stop fi記得加上執行權限： [root@LB_02?tools]#?chmod?+x?/home/lufeng/tools/chk_nginx_proxy.sh?補充VIP添加及查看方式：設置網卡的ip別名 #ifconfig?eth0:0?192.168.6.100?netmask?255.255.255.0?up? #ifconfig?eth0:1?173.173.173.173?netmask?255.255.255.0?up? #ifconfig?eth0:2?119.110.120.1?netmask?255.255.255.0?up 先進命令： #ip?addr?add?192.168.0.118/24?dev?eth0 查看 #ip?add|grep?192.168.0清除ip別名? #ifconfg?eth0:0?down? #ifconfg?eth0:1?down? #ifconfg?eth0:2?down?......將別名保存到配置文件： 方法1： 1.將增加ip別名的命令填寫到/etc/rc.local文件中?即將所有如這樣ifconfig?eth0:0?192.168.6.100?netmask?255.255.255.0?up的命令一行行全部填寫到rc.local文件中去，rc.local文件是作用于linux開機自動執行命令，詳細用法g或b一下，這里不詳細說明。?這個方法最方便，但不太可靠，有時會失靈。方法2： #vi?ifcfg-eth0:0? 創建eth0:0的配置文件，并將剛才復制的字段粘貼到這個配置文件，按照下文的介紹修改部分信息，修改完成后保存退出??以下是網卡配置文件的部分信息說明，其他類似信息默認即可：? ##############################################################################?? #?3Com?Corporation?3c905B?100BaseTX?[Cyclone]????//硬件型號，忽略不計? DEVICE=eth0:0?????????????????//虛擬網絡接口，隨意?????????????????????????????????????ONBOOT=yes????????????????????//系統啟動時激活? BOOTPROTO=static?????????????//使用靜態ip地址????????????????? IPADDR=192.168.6.100??????????//該虛擬網絡接口的ip別名，隨意? NETMASK=255.255.255.0?????????//子網掩碼，對應ip別名? GATEWAY=192.168.6.1???????????//網關，對應ip別名? HWADDR=00:10:5A:5E:B1:E4??????//網卡MAC地址，無需更改???????????????????? USERCTL=no????????????????????//是否給予非root用戶設備管理權限??##############################################################################設置必要開機自啟動： [root@LB_02?tools]#?echo?"/application/nginx/sbin/nginx">>/etc/rc.local? [root@LB_02?tools]#?echo?"/etc/init.d/keepalived?start">>/etc/rc.local??? [root@LB_02?tools]#?cat?/etc/rc.local??????????????????????????????????? #!/bin/sh # #?This?script?will?be?executed?*after*?all?the?other?init?scripts. #?You?can?put?your?own?initialization?stuff?in?here?if?you?don't #?want?to?do?the?full?Sys?V?style?init?stuff.touch?/var/lock/subsys/local /application/nginx/sbin/nginx /etc/init.d/keepalived?start

轉載于:https://blog.51cto.com/bestlufeng/1912678

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